I used to use a Wacom tablet for creative apps on my Mac and it was great. The pressure sensitivity their stylus provides together with the controls customization is why Wacom is a creative industry stalwart.
However…step forward the iPad Pro. Now I have a glass interface coupled with just the Apple Pencil that does everything the Wacom tablet provided me before AND everything else I need to be creative and productive.
All you need to a killer app in Astropad
This essentially provides you with full control of the OSX interface with the iPad and Pencil.
If you’re not convinced yet then check out this short video clip demonstration